Thymeleaf Neither BindingResult nor plain target object for bean name 'person' available as request attribute -
from can tell set correctly getting following error:
java.lang.illegalstateexception: neither bindingresult nor plain target object bean name 'person' available request attribute form
<form action="#" th:action="@{/person}" th:object="${person}" method="post" th:required="required"> <input type="text" th:field="*{subject}" class="contact col-md-6" placeholder="name *" th:required="required"/> <input type="text" th:field="*{name}" class="contact col-md-6" placeholder="name *" th:required="required"/> <input type="text" th:field="*{lastname}" class="contact col-md-6" placeholder="name *" th:required="required"/> <input type="email" th:field="*{email}" class="contact nomarr col-md-6" placeholder="e-mail address *" th:required="required"/> <textarea name="comment" class="contact col-md-12" th:field="*{message}" placeholder="message *" ></textarea> <input type="submit" id="submit" class="contact submit" value="send message" /> </form> person.java
public class person { private int id; private string name; private string lastname; private string email; private string subject; private string message; .... } controller
@controller public class applicationcontroller { @requestmapping(value = "/", method = requestmethod.get) public string indexpage(){ return "index"; } @requestmapping(value="/person", method=requestmethod.get) public string contactform(model model) { model.addattribute("person", new person()); return "index"; } @requestmapping(value="/person", method=requestmethod.post) public string contactsubmit(@modelattribute person person, model model) { model.addattribute("person", person); return "result"; } } i looked @ spring-boot , thmeleaf setup , looks setup identical.
---------------------update 1-----------------------
i have changed post method include bindingresult no success.
@requestmapping(value="/person", method=requestmethod.post) public string contactsubmit(@valid @modelattribute person person, bindingresult bindingresult, model model) { if(bindingresult.haserrors()){ system.out.println("there error "+bindingresult); system.out.println("person is: "+ person.getemail()); return "index"; } model.addattribute("person", person); return "result"; }
you forgot add bindingresult after @modelattribute :
@requestmapping(value="/person", method=requestmethod.post) public string contactsubmit(@modelattribute person person, bindingresult bindingresult, model model) { if (bindingresult.haserrors()) { //errors processing } model.addattribute("person", person); return "result"; } i'm have answered question :
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